python / python/cpython

The code generator(s) for the interpreters and JIT could do with better error reporting and documentation

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interpreter-core type-feature
Dominant language
Python
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Forks
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PR merge metrics
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Description

Particularly they need:

  • Better documentation of DEAD, ERROR_IF, DEOPT_IF and other special macros.
  • Checks for use after free. We track liveness of values, so we can report uses of dead variables.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the interpreter and JIT code generators and the definitions or uses of DEAD, ERROR_IF, and DEOPT_IF. Review how liveness is currently tracked, then determine the scope of the documentation and dead-variable checks; done requires agreed coverage for both requested areas.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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